High-temperature flue gas collecting device for medium-frequency induction furnace

Abstract

The utility model discloses a high-temperature flue gas collecting device of a medium-frequency induction furnace, which relates to the technical field of flue gas treatment of medium-frequency furnaces and comprises a treatment pipeline, the interior of the treatment pipeline is divided into a pre-cooling cavity, a filtering cavity and a cooling cavity from left to right in sequence through partition plates, and a pre-cooling pipe is arranged in the pre-cooling cavity in the vertical direction. A high-temperature filter element is arranged on the right side of the interior of the filter cavity and on the partition plate on the right side, cooling fins are vertically arranged in the cooling cavity in the left-right direction, cooling pipelines are arranged at the positions, corresponding to the pre-cooling pipes, of the upper end and the lower end of the outer surface of the treatment pipeline, and the pre-cooling pipes communicate with the cooling pipelines. Cooling water distribution boxes are arranged at the positions, corresponding to the cooling fins, of the upper end and the lower end of the outer surface of the treatment pipeline, the temperature of dust and flue gas is reduced, the working environment temperature of workers is reduced, the influence of high temperature on the physical and psychological health of the workers is reduced, and pollution to the production environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medium frequency furnace flue gas treatment, in particular to a high-temperature flue gas collection device for a medium frequency induction furnace. Background Art

[0002] Medium-frequency induction furnaces are a crucial type of industrial heating equipment. They utilize a medium-frequency power supply to generate an alternating magnetic field, inducing currents in the metal within the furnace, which in turn generates Joule heat to melt the metal. These furnaces offer rapid heating rates and high thermal efficiency, precise temperature control, uniform heating, and effective reduction of metal oxidation and impurity intrusion. They are widely used in the smelting and heat preservation of steel and non-ferrous metals, playing an irreplaceable role in industries such as casting and forging. During operation, medium-frequency induction furnaces generate high-temperature dust and flue gases, polluting the production environment. These hot dust and flue gases are directly discharged, exposing workers to prolonged high-temperature working environments and impacting their physical and mental health. Utility Model Content

[0003] The purpose of the utility model is to provide a high-temperature flue gas collection device for a medium-frequency induction furnace, so as to solve the problem proposed in the above-mentioned background technology that the medium-frequency induction furnace will generate high-temperature dust and flue gas during use, causing pollution to the production environment, and the dust and flue gas carrying heat are directly discharged, causing workers to be in a high-temperature working environment for a long time, affecting the physical and mental health of the workers.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a medium-frequency induction furnace high-temperature flue gas collection device, comprising a processing pipe, the interior of the processing pipe is divided into a pre-cooling chamber, a filter chamber and a cooling chamber from left to right by partitions, a pre-cooling pipe is provided in the upper and lower directions of the interior of the pre-cooling chamber, a high-temperature filter element is provided on the right side of the interior of the filter chamber and on the partition on the right side, cooling fins are vertically provided in the left and right directions of the interior of the cooling chamber, cooling pipes are provided at positions corresponding to the pre-cooling pipes at the upper and lower ends of the outer surface of the processing pipe, the pre-cooling pipe is communicated with the cooling pipe, a cooling water distribution box is provided at the upper and lower ends of the outer surface of the processing pipe corresponding to the cooling fins, and the cooling water distribution box at the lower end is communicated with one end of the cooling pipe through a pipe.

[0005] Preferably, the number of the cooling pipes is two groups, three in each group, and the number of the pre-cooling pipes is nine. Every three pre-cooling pipes pass through the processing pipe and are connected to the upper and lower two cooling pipes. Each group of cooling pipes is connected to the corresponding pre-cooling pipe in an S-shaped manner, and a heat spreader is provided on the outer surface of the pre-cooling pipe.

[0006] Preferably, the number of the cooling fins is five groups, and the upper and lower parts of each group of cooling fins pass through the processing pipe and are connected to the cooling water distribution tank, and heat spreaders are provided on the front and rear sides of the outer surfaces of the cooling fins.

[0007] Preferably, the processing pipeline is a metal pipeline structure with a square cross-section, both ends of the processing pipeline are provided with connecting flanges, and through holes are opened at positions corresponding to the high-temperature filter element on both sides of the partition.

[0008] Preferably, the outer side of the upper end of the cooling water distribution tank is connected to a cooling water inlet, and the other end of the cooling pipe is connected to a cooling water outlet.

[0009] Compared with the existing technology, the beneficial effects of the utility model are as follows: the medium frequency induction furnace will generate high-temperature dust and flue gas during use, the high-temperature dust and flue gas are treated by the flue gas collection device, and the high-temperature dust and flue gas are cooled by the cooling heat exchange equipment, thereby reducing the temperature of the dust and flue gas, reducing the working environment temperature of the staff, reducing the impact of high temperature on the physical and mental health of the staff, and filtering the dust through the filtering device to reduce the pollution to the production environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is the axonometric drawing of the main structure of the utility model;

[0011] Figure 2 This is an axonometric cross-sectional view of the main structure of the utility model;

[0012] Figure 3 This is a main cross-sectional view of the main structure of the utility model;

[0013] Figure 4 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 5 It is a top view schematic diagram of the main structure of the utility model.

[0015] In the figure: 1-processing pipeline, 2-pre-cooling chamber, 3-filter chamber, 4-cooling chamber, 5-pre-cooling pipe, 6-high-temperature filter element, 7-cooling fin, 8-cooling pipeline, 9-cooling water distribution tank, 10-heat spreader, 11-heat spreader, 12-connecting flange, 13-through hole, 14-cooling water inlet, 15-cooling water outlet, 16-partition. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-5 The utility model provides a high-temperature flue gas collection device for a medium-frequency induction furnace, comprising a processing pipe 1, the interior of the processing pipe 1 being divided into a pre-cooling chamber 2, a filter chamber 3 and a cooling chamber 4 from left to right in sequence by a partition 16, a pre-cooling pipe 5 is provided in the upper and lower directions inside the pre-cooling chamber 2, a high-temperature filter element 6 is provided on the right side of the interior of the filter chamber 3 and on the partition 16 on the right side, cooling fins 7 are vertically provided in the left and right directions inside the cooling chamber 4, a cooling pipe 8 is provided at positions corresponding to the pre-cooling pipe 5 at the upper and lower ends of the outer surface of the processing pipe 1, the pre-cooling pipe 5 is communicated with the cooling pipe 8, a cooling water distribution box 9 is provided at the upper and lower ends of the outer surface of the processing pipe 1 corresponding to the cooling fin 7, and the cooling water distribution box 9 at the lower end is communicated with one end of the cooling pipe 8 through a pipe.

[0018] When in use, one end of the processing pipe 1 is connected to the flue gas outlet of the medium frequency induction furnace, and the other end of the processing pipe 1 is connected to the negative pressure suction device. The flue gas inside the medium frequency induction furnace is sucked by the negative pressure suction device. The high-temperature dust and flue gas first enter the interior of the pre-cooling chamber 2. A pre-cooling pipe 5 is arranged inside the pre-cooling chamber 2. Cooling water is input into the interior of the pre-cooling pipe 5 through the cooling pipe 8. The high-temperature dust and flue gas are pre-cooled through the pre-cooling pipe 5. The high-temperature dust and flue gas after pre-cooling are input into the interior of the filter chamber 3 through the partition 16. A high-temperature filter element 6 is arranged inside the filter chamber 3, and the high-temperature dust and flue gas are filtered and treated by the high-temperature filter element 6. After the treatment, the high-temperature dust and flue gas are input into the interior of the cooling chamber 4 through the partition 16. The interior of the cooling chamber 4 is provided with a cooling plate 7. Cooling water is input into the interior of the cooling plate 7 through the cooling powder water tank 9. The high-temperature dust and flue gas are subjected to the final cooling treatment through the cooling plate 7 to reduce the temperature of the high-temperature dust and flue gas to the indoor ambient temperature. The external cooling water is first input into the cooling water distribution tank 9, and then enters the cooling pipe 8 for cooling heat exchange. After the cooling heat exchange is completed, the cooling water temperature is still lower than the temperature of the high-temperature dust and flue gas. The cooling water is input into the interior of the cooling pipe 8, and then the cooling water enters the interior of the pre-cooling pipe 5 to perform pre-cooling heat exchange on the high-temperature dust and flue gas.

[0019] The number of the cooling pipes 8 is two groups, three in each group, and the number of the pre-cooling pipes 5 is nine. Every three pre-cooling pipes 5 pass through the processing pipe 1 and are connected to the two upper and lower cooling pipes 8. Each group of cooling pipes 8 is connected to the corresponding pre-cooling pipes 5 in an S-shaped connection. A heat spreader 10 is provided on the outer surface of the pre-cooling pipe 5. By designing the cooling pipes 8 in groups and the corresponding pre-cooling pipes 5, and providing the heat spreader 10 on the outer surface of the pre-cooling pipe 5, the pre-cooling heat exchange efficiency of the pre-cooling pipe 5 is improved.

[0020] There are five groups of cooling fins 7. The upper and lower parts of each group of cooling fins 7 pass through the processing pipe 1 and are connected to the cooling water distribution tank 9. The front and rear sides of the outer surfaces of the cooling fins 7 are provided with heat spreaders 11. By designing the cooling fins 7 in groups and arranging the heat spreaders 11 on the cooling fins 7, the cooling heat exchange efficiency of the cooling fins 7 is improved.

[0021] The processing pipeline 1 is a metal pipeline structure with a square cross-section. Connecting flanges 12 are provided at both ends of the processing pipeline 1. Through holes 13 are provided at positions corresponding to the high-temperature filter element 6 on both sides of the partition 16. The two ends of the processing pipeline 1 are respectively connected to the flue gas outlet position of the medium-frequency induction furnace and the negative pressure suction equipment through the connecting flanges 12. By arranging the through holes 13 on the partition 16, the flue gas can be effectively input into the high-temperature filter element 6 while ensuring the smoothness of the flue gas circulation.

[0022] The outer side of the upper end of the cooling water distribution tank 9 is connected to a cooling water inlet 14, and the other end of the cooling pipe 8 is connected to a cooling water outlet 15. Cooling water is input into the interior of the cooling water distribution tank 9 through the cooling water inlet 14, and the cooling water that completes heat exchange is output to the outside of the equipment through the cooling water outlet 15.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medium frequency induction furnace high temperature flue gas collection device, characterized by: The invention comprises a processing pipeline (1), wherein the interior of the processing pipeline (1) is divided into a pre-cooling chamber (2), a filter chamber (3) and a cooling chamber (4) in sequence from left to right by a partition (16), a pre-cooling pipe (5) is provided in the upper and lower directions inside the pre-cooling chamber (2), a high-temperature filter element (6) is provided on the right side of the interior of the filter chamber (3) and on the partition (16) on the right side, and cooling fins (7) are vertically provided in the left and right directions inside the cooling chamber (4), a cooling pipe (8) is provided at the upper and lower ends of the outer surface of the processing pipeline (1) at positions corresponding to the pre-cooling pipe (5), the pre-cooling pipe (5) is connected to the cooling pipe (8), a cooling water distribution box (9) is provided at the upper and lower ends of the outer surface of the processing pipeline (1) at positions corresponding to the cooling fins (7), and the lower end of the cooling water distribution box (9) is connected to one end of the cooling pipeline (8) through a pipe.

2. The medium frequency induction furnace high temperature flue gas collection device according to claim 1, characterized in that: The number of the cooling pipes (8) is two groups, three in each group, and the number of the pre-cooling pipes (5) is nine. Every three pre-cooling pipes (5) pass through the processing pipe (1) and are connected to the two cooling pipes (8) in the upper and lower groups. Each group of cooling pipes (8) is connected to the corresponding pre-cooling pipes (5) in an S-shaped manner. The outer surface of the pre-cooling pipe (5) is provided with a heat spreader (10).

3. The medium frequency induction furnace high temperature flue gas collection device according to claim 1, characterized in that: The number of the cooling fins (7) is five groups, and the upper and lower parts of each group of cooling fins (7) pass through the processing pipe (1) and are connected to the cooling water distribution tank (9). The front and rear sides of the outer surfaces of the cooling fins (7) are provided with heat radiators (11).

4. The medium frequency induction furnace high temperature flue gas collection device according to claim 1, characterized in that: The processing pipeline (1) is a metal pipeline structure with a square cross-section. Connecting flanges (12) are provided at both ends of the processing pipeline (1), and through holes (13) are provided at positions corresponding to the partitions (16) and the high-temperature filter element (6) on both sides.

5. The medium frequency induction furnace high temperature flue gas collection device according to claim 1, characterized in that: The outer side of the upper cooling water distribution tank (9) is connected to a cooling water inlet (14), and the other end of the cooling pipe (8) is connected to a cooling water outlet (15).

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